Manual Interface Converter K-114 450565.
List of contents General information 17 Pin assignment for converter / connections 18 Technical specifications 18 Description 19 Typical application 19 Overview of products 19 System requirements for K-114_Config software 20 Factory configuration for the K-114 20 Functional overview for the K-114 20 LED display 21 RoHS 22 Disposal 22 Help with fault analysis 23 Installing the K-114_Config software 24 Running the K-114_Config software 24 Voltage and current measurements with K-
General information The K-114 interface converter is used to convert a USB signal to a serial RS485 half-duplex signal, for connection to any desired computer with a USB port. The K-114 converter and the connected transmitters are powered via the USB connection. An external power supply unit can also be connected to power multiple instruments. The K-114 converter is preferred for use with KELLER products.
Pin assignment for converter / connections K-114 plug-in screw terminal K-114-A Fischer plug-in connector S 103 A054-130 K-114-B Binder female cable connector Serie 680 5-pole 3: +Vcc 2: +U-IN 1: GND 3: +Vcc +Vcc RS GND RS 485-A 485-B 2: +U-IN 4: RS485-A 1: GND 5: RS485-B 5: RS485-B 4: RS485-A Technical specifications Symbol Min. typ. Max.
Description The K-114 communicates with the connected devices via an RS485 (half-duplex mode) bus. The devices connected to the K-114 are supplied via the PC’s USB output or via an external power supply unit (K-114 socket). KELLER products operate with fail-safe drivers that generate a logical «high» at the reception output in case of short-circuited, open or terminated inputs, in order to avoid invalid signal statuses. KELLER products also have a slew rate limitation which limits the edge steepness (i.e.
System requirements for K-114_Config software Factory configuration for the K-114 Processor Screen resolution Main (working) memory Free hard disk space Converter bus address Internet connection Operating system min. Pentium 75 MHz min. 1024 x 768 min. 16 MB RAM min.
K-114 Power USB to RS485 Converter RX/TX USB RS485B GND RS485A +VCC RS485 www.keller-druck.com LED display External Supply Echo off Bias on 15 VDC GND Termination High Speed on on Power Ready to operate Flashing rapidly, error Flashing slowly, error ➞ U-USB < 4,5 VDC ➞ Connect power supply unit ➞ U-UOUT < 11,2 VDC ➞ Connect power supply unit Error RX/TX Shows the status of the transmission line (TX) and the reception line (RX).
KELLER products use fail-safe RS485 drivers which output a valid signal even with an undefined level. For this reason, it is not mandatory to enable this function. Termination on Termination resistor (120 Ω) connected** Termination resistor not connected High Speed Shows the status of the High speed function.** High speed enabled High speed disabled **IMPORTANT: On battery-powered devices, this function can lead to operating errors ➞ Recommendation: do not enable the function.
Help with fault analysis – 23 –
Installing the K-114_Config software First, install the K-104 / K-114 driver on your computer and then run the K-114_Config software. (The software can be downloaded free of charge at www.keller-druck.com) Running the K-114_Config software Run K-114_Config and select the appropriate COM port. Then go to the K-114 Configuration view (top right). Tip: When the program is open, Comport is selected automatically as soon as the K-114 is plugged into the computer.
Voltage and current measurements with K-114_Config No. Symbol Function Description 1 I-OUT Current supply – external consumer No valid display during operation with external current supply 2 U-USB USB voltage supply 3 U-OUT Voltage supply – external consumer Switched-in voltage supply is indicated via U-OUT 4 U-IN Voltage input Range: 0...
Warnings and other messages in the software U-USB is below minimum This message appears if the U-USB voltage is below 4,8 VDC. Fault-free functioning of the converter is no longer guaranteed. Supply the converter from an external power supply unit. U-OUT outside of range This message appears if U-OUT is less than 11,2 VDC. Supply the converter from an external power supply unit.
U-IN outside of measurement range The U-IN measurement range is from 0...12 VDC. The exclamation mark warns you that the upper limit of the measuring range that can be displayed (> 16 VDC) has been reached. The voltage for measurement that is actually applied (U-IN) can therefore be greater than the value for U-IN that is displayed. Connect power supply unit If the difference between U-OUT and U-IN is less than 3 VDC, the «Connect power supply unit» message appears.
Recording K-114 measurement data The values measured for I-OUT, U-IN, U-OUT and U-USB can be recorded and saved via Software ControlCenterSeries30 (CCS30). (Read the CCS30 manual on this subject.) To view the K-114 controller’s measured values via the software, you must enter bus address 253 in the CCS30 and let the device search. Use the «New measurement» function key to view and save the measurement data.
Konformitätserklärung Declaration of Conformity Déclaration de Conformité Für das folgende Erzeugnis Herewith we declare, that the following product Nous attestons que le produit Konverter K-114 Converter K-114 Convertisseur K-114 wird hiermit bestätigt, dass sie den Anforderungen folgender EU-Richtlinien meet the basic requirements, which are established in the guidelines of the European Community répond aux exigences prévues par les directives de la Communauté Européenne EMV-Richtlinie 2014/30
KELLER AG für Druckmesstechnik CH-8404 Winterthur +41 52 235 25 25 info@keller-druck.com KELLER Ges. für Druckmesstechnik mbH DE-79798 Jestetten +49 7745 9214 0 eurocenter@keller-druck.com Version | Edition 12/2022 www.keller-druck.
